Yeah, I've noticed that the times can be slightly off. It doesn't really bother me much, though. I guess the site can't reliably know exactly what time you've closed the browser window.
That's weird, it looks like it showed both a new topic and a reply for your "Flashbacks" topic, even though you only created the topic and there are no replies.
I've also noticed bugs with detecting whether I've read all the posts or not. There are a few topics where I've read all the posts, though it still shows "Unread posts", and there are topics with hundreds of pages where I've only read a few posts, and it says "No unread posts".
What's with the wacky font in your browser?